git: openjdk/jdk8u-dev: 8375063: Update Libpng to 1.6.54

[Sergey Bylokhov]

Changeset: b647fb8f
Branch: master
Author:    Sergey Bylokhov <serb at openjdk.org>
Date:      2026-02-18 08:21:41 +0000
URL:       https://git.openjdk.org/jdk8u-dev/commit/b647fb8f26e021a9ea437a55bdfdea2e21528a9d

8375063: Update Libpng to 1.6.54

Reviewed-by: phh, andrew
Backport-of: a2e749572e03dd394d123b701e163e3837472dd0

! THIRD_PARTY_README
! jdk/src/share/native/sun/awt/libpng/CHANGES
! jdk/src/share/native/sun/awt/libpng/LICENSE
! jdk/src/share/native/sun/awt/libpng/README
! jdk/src/share/native/sun/awt/libpng/png.c
! jdk/src/share/native/sun/awt/libpng/png.h
! jdk/src/share/native/sun/awt/libpng/pngconf.h
! jdk/src/share/native/sun/awt/libpng/pngerror.c
! jdk/src/share/native/sun/awt/libpng/pngget.c
! jdk/src/share/native/sun/awt/libpng/pnglibconf.h
! jdk/src/share/native/sun/awt/libpng/pngmem.c
! jdk/src/share/native/sun/awt/libpng/pngpriv.h
! jdk/src/share/native/sun/awt/libpng/pngread.c
! jdk/src/share/native/sun/awt/libpng/pngrtran.c
! jdk/src/share/native/sun/awt/libpng/pngrutil.c
! jdk/src/share/native/sun/awt/libpng/pngtrans.c